# -*- coding: UTF-8 -*-
"""
 Copyright 2020 Tianshu AI Platform. All Rights Reserved.

 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
 You may obtain a copy of the License at

     http://www.apache.org/licenses/LICENSE-2.0

 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,
 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
 =============================================================
"""


class scalar_read:
    """
    返回指定scalar数据
    args:
        logdir:文件路径 Optional
        data:内存数据 Optional
        tag:文件路径 Optional
    """

    def __init__(self, data=None):
        self.data = data

    def get_data(self):
        """
        返回一个二维数组，每个元素代表一次迭代。
        """
        if self.data:
            _data = self.data
        else:
            return None
        result = []
        for items in _data:
            values = {'wall_time': items['wall_time'],
                      'step': items['step'],
                      'value': items['value']}
            result.append(values)
        return result
